Need your suggestions re IF *Updated*

So I started IF about a month ago. Over the first 2 weeks, I saw incredible results for such a short amount of time, comparatively speaking. These last 2 weeks have been another story. I feel like I hit a "plateau" or something.

The most disconcerting thing are my bowel movements, or lack thereof. My morning constitution is nonexistent and I have a movement about every 4 days now. And they are violent.

I know this might sound stupid but I'm only being honest here.

I typically go 18-6, sometimes 16-8. Diet is clean, trying my best to stick to a keto diet.

Workout is at 6am and I'm very strict on not breaking the fast til at least 12pm.

Any thoughts?

EDIT: So after looking at my diet, I realized that I actually have a healthy amount of fiber intake.

So I started taking my BCAAs with my preworkout in the AM. The change has been drastic. I'm regular again and starting to see better results after less than a week.

My only question is this: I've read before that BCAAs are technically breaking your fast. Is this not the case? Or should I just not worry about it if I'm seeing the results I want?